\include{header} 
\begin{document}

\ifpdf
\DeclareGraphicsExtensions{.pdf, .jpg, .tif}
\else
\DeclareGraphicsExtensions{.eps, .jpg}
\fi

\maketitle

\include{introduction} 

\bibliographystyle{plain}
\bibliography{lemur}
% \include{appendix} 
\end{document}
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%%% mode: latex
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